A hierarchical multi-mode MSF model for long-chain branched polymer melts part I: elongational flow

被引：28

作者：

Narimissa, Esmaeil ^{[1
]}

Rolon-Garrido, Victor H. ^{[1
]}

Wagner, Manfred H. ^{[1
]}

机构：

[1] Tech Univ Berlin, Berlin Inst Technol, Polymer Engn Polymer Phys, D-10623 Berlin, Germany

来源：

RHEOLOGICA ACTA | 2015年 / 54卷 / 9-10期

关键词：

Molecular stress function theory; Modelling; Uniaxial extension; Viscoelastic fluid; Elongational flow; Polymer melt; DENSITY POLYETHYLENE MELTS; NONLINEAR STRAIN MEASURES; CONSTITUTIVE-EQUATIONS; POLYSTYRENE MELTS; EXTENSIONAL VISCOSITY; LDPE MELTS; RHEOLOGY; PRESSURE; RHEOMETER; DYNAMICS;

D O I：

10.1007/s00397-015-0879-2

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A novel hierarchical multi-mode molecular stress function (HMMSF) model for long-chain branched (LCB) polymer melts is proposed, which implements the basic ideas of (i) the pom-pom model, (ii) hierarchal relaxation, (iii) dynamic dilution and (iv) interchain pressure. Here, the capability of this approach is demonstrated in modelling uniaxial extensional viscosity data of numerous broadly distributed long-chain branched polymer melts with only a single non-linear parameter, the dilution modulus.

引用

页码：779 / 791

页数：13

共 36 条

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